content: package com.sast.astbenchmark.case_language_maturity.accuracy.path_sensitive.loop_conditional_stmt.solver;
  
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.PathVariable;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  import java.util.HashMap;
  import java.util.Map;
  
  // evaluation information start
  // real case = false
  // evaluation item = 准确度->路径敏感分析->条件语句、条件表达式和循环结构->能够对上下文条件进行求解，以区分不同执行路径的状态
  // scene introduction = instanceof表达式-null
  // level = 4
  // bind_url = accuracy/path_sensitive/loop_conditional_stmt/solver/Expression_InstanceofExpression_solver_004_F/{cmd}
  // evaluation information end
  @RestController()
  @RequestMapping("accuracy/path_sensitive/loop_conditional_stmt/solver")
  public class Expression_InstanceofExpression_solver_004_F {
      @GetMapping("Expression_InstanceofExpression_solver_004_F/{cmd}")
      public Map<String, Object> testcase(@PathVariable String cmd) {
          Map<String, Object> modelMap = new HashMap<>();
          try {
              if (null instanceof String) {
                  Runtime.getRuntime().exec(cmd);
                  modelMap.put("status", "success");
              } else {
                  modelMap.put("status", "error");
              }
          } catch (Exception e) {
              modelMap.put("status", "error");
          }
          return modelMap;
      }
  }
  